
A widespread disruption across the electricity grids of Spain and Portugal was attributed to a `rare atmospheric phenomenon` occurring on Spanish territory. The specific cause was identified as extreme temperature fluctuations in Spain`s interior regions.
Full normalization of the Portuguese grid`s operation could potentially take up to a week.
Among the cities affected by the large-scale power outage were Madrid, Barcelona, Valencia, Seville, Bilbao, and Lisbon. Transport systems, internet connectivity, and water pumps were impacted by the blackout.
Notably, at the clay court tournament taking place in Madrid, Spain, the power cut disabled the electronic line-calling system as well as the scoring system. The tournament organizers announced that all matches scheduled for that day were postponed until tomorrow.